Results 31 to 40 of about 1,782 (177)

Role of sample thickness and self-absorption effects in simultaneous XEOL-XAS measurements on single crystalline ZnO and GaN

Physical Review Research
The x-ray excited optical luminescence (XEOL) for defect and near band edge (NBE) transitions combined with simultaneous x-ray absorption measurements are experimentally and theoretically studied on single crystalline ZnO and GaN across the Zn and Ga K ...
Sergiu Levcenko, Konrad Ritter, Hans H. Falk, Timo Pfeiffelmann, Lukas Trefflich, Edmund Welter, Marius Grundmann, Claudia S. Schnohr   +7 more
doaj   +1 more source

Dual‐Rare‐Earth‐Doped Piezoelectric Semiconductor Gallate Solids With Spectral Tuning for Energy Conversion and Photonic Applications

Rare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Mechanoluminescent materials have gained significant attention for their unique capability to convert mechanical stimuli into light without external optical or electrical excitation, holding immense promise for applications in safety monitoring, biomedicine, optical anti‐counterfeiting, and intelligent sensing.
Fanlei Qin, Yujie Chen, Zhangyi Tian, Ange Zhu, Xianghua Zhang, Wasfa Zulfiqar, Denghao Li, Yang Zhang, Gongxun Bai   +8 more
wiley   +1 more source

XANES and XEOL investigations of SiC microcrystals and SiC nanowires

Journal of Physics: Conference Series, 2009
X-ray absorption near-edge structures (XANES) at Si and C K-edge as well as X-ray excited optical luminescence (XEOL) have been used to investigate the electronic structures and optical properties of SiC microcrystals (SiCmcs) and SiC nanowires (SiCnws). SiCnws synthesized via thermal evaporation, have a SiC (β-phase)-core-SiO2-shell morphology.
Lijia Liu, J Y P Ko, M J Ward, Y M Yiu, T K Sham, Y Zhang   +5 more
openaire   +1 more source

Cooperative Atomic Mechanism of Emergent Tilted Magnetic Anisotropy

Advanced Electronic Materials, Volume 11, Issue 21, December 17, 2025.
This study reveals a novel atomic mechanism behind magnetic anisotropy, where single‐ion anisotropy at dilute atomic sites establishes a long‐range anisotropic magnetic order via exchange interaction. The resulting exchange‐induced anisotropy contributes comparably to the single‐ion anisotropy, offering a promising strategy for engineering magnetic ...
Brajagopal Das, Cinthia Piamonteze, Lior Kornblum   +2 more
wiley   +1 more source

Addressing Inherent Challenges to Chemical Relithiation of Cycled End‐of‐Life Cathode Materials

Advanced Energy Materials, Volume 15, Issue 46, December 9, 2025.
The evolution of fluorine surface species is tracked during a low‐temperature redox mediator relithiation process for direct recycling of cycled NMC 622. A washing step is presented as a solution for mediating adverse effects of surface contamination. Redox mediator relithiation is shown to be a rapid, efficient method that can be applied to cycled NMC
Cyrus Kirwa, Evelyna Wang, Seoung‐Bum Son, Juliane Preimesberger, Fulya Dogan Key, Yaocai Bai, Krzysztof Pupek, Hongmei Luo, Matthew Keyser, Jaclyn Coyle   +9 more
wiley   +1 more source

Emerging applications of rare‐earth fluoride nanocrystals in medicine and biotechnologies

Responsive Materials, Volume 3, Issue 4, November 2025.
Rare‐earth fluoride nanocrystals (REFNCs) exhibit high responsivity and can be used as multi‐modal agents in medicine and theranostics. This review summarizes recent advances in REFNCs, covering their synthesis, structures, luminescent properties, and applications in multi‐modal imaging and photodynamic therapy, highlighting their theranostic potential
Alain Tressaud, Zhichao Wang, Yuqi Tang, Quan Li   +3 more
wiley   +1 more source

Investigation of X-ray excited optical luminescence properties of Er, Nd-doped YVO4 phosphors using a hard X-ray beam

Optical Materials: X
Scintillators based on YVO4:Er3+ and YVO4:Er3+, Nd3+, synthesized through glucose-assisted sol-gel method and calcined under different temperatures were studied via X-ray excited optical luminescence (XEOL). The samples' crystalline structure was studied
Francisca J.R. Tavares, Matheus S.C. de Oliveira, Ariosvaldo J.S. Silva, Iara de F. Gimenez, Verônica C. Teixeira, Nilson S. Ferreira, Marcos V. dos S. Rezende   +6 more
doaj   +1 more source

Dynamic processes in the Cirro and Ares embayment and your influence on possible environmental impacts [PDF]

, 1990
[Resumen] En este trabajo se analizan los procesos litorales que afectan a estas ensenadas; para ello se tienen en cuenta las corrientes de arrastre superficial del agua, así como los movimientos de masas arenosas situadas en zonas playeras y la forma en
Grajal Blanco, Mariano
core   +1 more source

Proving Optical Anisotropy and Polarization Effects in β‐Ga2O3$\left(\text{Ga}\right)_{2} \left(\text{O}\right)_{3}$ Nanomembranes via X‐Ray Excited Optical Luminescence

Advanced Photonics Research, Volume 6, Issue 10, October 2025.
In this study, the pronounced anisotropy in the optical properties of β‐Ga2O3 nanomembranes has been analized under a synchrotron nanoprobe. We have investigated the site‐specific contributions of distint Ga ions to the emission bands by combining polarization‐dependent X‐ray absorption near‐edge structure and X‐ray excited luminescence.
Paula Pérez‐Peinado, Jaime Dolado, Pedro L. Alcázar Ruano, Daniel Carrasco, Ruth Martínez‐Casado, Valentina Bonino, Gema Martínez‐Criado, Jani Jesenovec, John S. McCloy, Francisco Domínguez‐Adame, Jorge Quereda, Emilio Nogales, Bianchi Méndez   +12 more
wiley   +1 more source

Convergencia litológica y climática en la morfología granítica [PDF]

, 1995
[Abstract] The major and minor forms eommon to granite (and related erystalline lithologies) and to daeite, sandstone and limestone are listed and briefly deseribed.
Campbell, E. M., Twidale, C. R.
core   +1 more source